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Finding the Fourth Proportional to 8,360.48, 12,540.96 and 4,660.64

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Solution

The fourth proportional to 8,360.48, 12,540.96 and 4,660.64 is: 6,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.48 : 12,540.96 = 4,660.64 : x
  2. Step 2: Convert to fraction form
    8,360.48/12,540.96 = 4,660.64/x
  3. Step 3: Cross multiply
    8,360.48x = 12,540.96 × 4,660.64
  4. Step 4: Simplify right side
    8,360.48x = 58,448,899.81
  5. Step 5: Solve for x
    x = 58,448,899.81/8,360.48
  6. Step 6: Final answer
    x = 6,991.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.